This
teacher-directed
demonstration
provides
a
conceptual
understanding
of
latent
heat.
Using
the
example
of
a
chemical
hand
warmer,
students
learn
about
phase
changes
from
liquid
to
solid
and
from
solid
to
liquid
and
observe
that
one
of
these
phase
changes
releases
heat
while
the
other
requires
heat
to
be
added.
These
concepts
are
then
reinforced
in
a
demonstration
which
involves
heating
water
and
...
Full description.

This
report
discusses
how
natural
processes
and
human
activities
affect
the
interactions
of
ground
water
and
surface
water,
and
the
importance
of
considering
ground
water
and
surface
water
as
a
single
resource.
Topics
include
natural
processes
of
ground-
and
surface-water
interaction;
chemical
interactions;
and
the
effect
of
landscapes
on
these
interactions.
There
is
also
discussion
of
the
effects
...
Full description.

Grade level:
High (9-12), College (13-14), College (15-16), Graduate / Professional, General public

This
site
offers
the
online
version
of
a
book
published
by
the
United
States
Geological
Survey
(USGS).
It
is
intended
to
provide
a
brief
introduction
to
the
concept
of
plate
tectonics,
highlighting
some
of
the
people
and
discoveries
that
advanced
the
development
of
the
theory.
It
is
the
companion
volume
to
the
map,
'This
Dynamic
Planet',
which
shows
the
locations
of
major
volcanic
belts,
fault
systems,
...
Full description.

This
activity
demonstrates
how
to
import
data
from
the
Internet
and
make
EXCEL
graphs.
The
instructions
included
were
provided
by
a
classroom
teacher
who
used
these
instructions
with
high
school
students.
Following
detailed,
illustrated
instructions,
students
will
complete
the
activity
by
working
with
data
from
two
cities:
Little
Rock,
Arkansas
and
Miami,
Florida.
Since
temperature
generally
decreases
...
Full description.

Students
can
view
these
television
programs
about
a
variety
of
ocean
science
topics
right
in
their
classroom.
They
are
presented
by
real
scientists
and
feature
a
call-in
question
and
answer
session
to
end
the
lesson.
Teacher
packets
containing
information
pertaining
to
program
topics,
activities
to
do
with
students,
pages
for
students'
individual
use,
and
vocabulary
and
reference
lists,
are
available
...
Full description.

This news article discusses data on Jupiter's moon Europa returned by NASA's Galileo and Voyager spacecraft and the possibility that an ocean of liquid water might exist on Europa and, with it, the possiblilty for extraterrestrial life.
Full description.

This site has information about where the tectonic plates were located in the Pleistocene and throughout geologic time. You can view animations of the plates moving or download models.
Full description.

Grade level:
Intermediate (3-5), Middle (6-8), High (9-12), College (13-14), College (15-16), Informal, General public

The
United
States
Global
Change
Research
Program
(USGCRP)
was
created
as
a
high-priority
national
research
program
to:
address
key
uncertainties
about
changes
in
the
Earth's
global
environmental
system,
both
natural
and
human-induced;
monitor,
understand,
and
predict
global
change;
and
provide
a
sound
scientific
basis
for
national
and
international
decision-making.
Some
of
the
global
change
issues
...
Full description.

Grade level:
High (9-12), College (13-14), College (15-16), Graduate / Professional

This
portal
provides
information
on
how
we
use
water
on
an
everyday
basis.
Users
can
choose
from
some
general
water-use
topics
on
the
left
side
of
the
graphic,
or
from
the
categories
of
water
use
on
the
right
side.
A
text
menu
of
the
topics
is
provided
below
the
graphic.
Topics
include
groundwater,
surface
water,
domestic
versus
commercial
consumption,
irrigation
and
livestock,
and
industrial
uses.
...
Full description.

Geomorphology
from
Space
is
an
out-of-print
1986
NASA
publication
designed
for
use
by
the
remote
sensing,
science,
and
educational
communities
to
study
landforms
and
landscapes.
Users
can
access
a
gallery
of
images
consisting
of
237
plates
arranged
by
particular
types
of
landforms
such
as
tectonic,
volcanic,
planetary,
and
others.
Photographs,
locator
maps,
and
sometimes
a
geologic
map
accompany
the
...
Full description.